Tire-filling composition



To all whom it may co hoem AUNITEDHOSITATES' PATENT OFFICE,

Jon-NA. SCHMIDTKE, or CALGARY, ALBERTA, CANADA. v

No Drawing.

Beit known that I, JOHN A. a citizen of the United States residmg at Calgary, Province of Alberta, anada, have invented a new and useful Tire-Filllng Composition. I i

The object of my invention is to produce a material that maybe introduced into an outer casing of the formnnow in general use upon automobiles having neumatic tires, and which, replacing the air in such tires will be resilient, light in weight, and

\ durable in service.

I am aware that such tire, fillers have been known and used previously to my invention,

but the composition of matter herein disclosed has marked advantages of extreme light weight, extreme flexibility and resiliency, in combination with longer life under the constantly changing 'fiber stresses incident to such use, and cheaper production. My composition for such use consists of the following ingredients, combined in substantially the proportions stated, to wit;

Vegetable oil 74% Magnesium oXid 2.2% Ultramarine 2.2% Litharge 2.2% Oakum' 1.9%

. Chlorid of sulfur 17.5%

TIRE-FILLING- COMPOSITION.

i I have discovered that the use of the vaabove mentioned.

Patented May 3, 1921.

Application filed April 22, 1920. Serial No. 375,886. Y

rious ingredients specified above in combination with the specified percentage of 'oakum results in' the desirable advantagesf a 3 In preparation, the ingredients of my composition are thoroughly mixed, and then molded into the desired form. I

In use the molded product is firmly f cased within the outer casing commonly used ,with-pneumatic tires, thus eliminating the inner tubeand compressed air.

Having disclosed my invention so that othersskilled in the art may be enabled to p compound and to use the same, what I claim as new, and desire to secure by Letters Patent is:

A tire filler comprising the following ingredients in proportions substantially as set forth; vegetable oil 74%; ma nesiurn 'oxid 2.2%; ultramarine 2.2% lit arge 2.2%; oakum 1.9% chlorid of sulfur 17.5%.

JOHN A. SGHMIDTKE.

a Witnesses 

